<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			var num1 = 12
			var num2 = 4
			//取余数
//			alert(num1 % num2)
			//"==" 只要求值相等;   "===" 要求值和类型都相等
			alert("1"  ==  1)
			alert("1" === 1)
		</script>
	</body>
</html>
